3227498 Rev.
GENERAL SAFETY INFORMATION RECEIVING, MOVING, AND UNPACKING 1. PRESSURIZED DEVICES: A. RECEIVING This equipment is a pressure containing device. • • Do not exceed maximum operating pressure as shown on equipment serial number tag. Make sure equipment is depressurized before working on or disassembling it for service. 2. ELECTRICAL: This equipment requires electricity to operate. • Install equipment in compliance with all applicable electrical codes.
INSTALLATION Separator Receiver Ambient Air Temperature Locate the dryer indoors where the ambient air temperature will be between 45°F and 110°F. Intermittent operation at ambient temperatures up to 113°F will not damage the dryer but may result in a higher dew point or dryer shutdown due to high refrigerant discharge pressure (see Field Service Guide). Do not operate air-cooled dryers at ambient air temperatures below 40°F. Such operation may result in low suction pressure, causing freeze-up.
INSTRUMENTATION ON/OFF Switch The dryer is equipped with an ON/OFF switch on the front panel. A light signals when the dryer is on. Dew Point Indicator (75 through 150 scfm models) All dryers are equipped with a dew point indicator which indicates dryer conditions as follows: It is normal for the dew point indicator to be in the red zone when the dryer is first turned on and then move to the green zone when the dryer reaches its normal operating temperature.
3 4 5 2 6 7 1 10 9 8 Dryer System Monitor (Models RNP200, RNP250, RNP300, RNP400 and RNP500) 1. On/Off Switch: Press the top of the switch (I) to turn the dryer on. Press the bottom of the switch (O) to turn the dryer off. When the dryer is on, the switch is illuminated. 2. This is a graphic symbol for the Air Dryer compressor. It simply indicates that the switch is used to turn the compressor (dryer) on and off. 3. Part of the graphic for the dew point temperature scale.
START-UP/OPERATION SHUTDOWN Follow the procedure below to start your dryer. Failure to follow the prescribed start-up procedure will invalidate the warranty. If problems arise during start-up, call your distributor. When the dryer must be shutdown for maintenance or other reasons, use the following procedure. Refer to Serial Number Tag for dryer operating capacity. Do not exceed recommended capacity. 1. Turn off the power switch. 2. Disconnect the main power supply. 3.
Weekly Maintenance Inspect the ambient air filter weekly and clean it if necessary. Dirty air filters cause loss of efficiency and may result in damage to the product. Air Filter — Clean accumulated dust and dirt from air filter weekly as required. 1. Open ambient filter side door. 2. Remove air filter by sliding upwards. 3. Wash with soap and water and allow to dry before reinstalling. NOTE: Do not use solvents to clean filter. 4. Reinstall air filter and right side door. 5.
FIELD SERVICE GUIDE Problems most frequently encountered with refrigerated dryers are water downstream of the dryer and excessive pressure drop. Most causes can be identified and remedied by following this guide. Do not smoke when a refrigeration leak is suspected. Burning materials may decompose refrigerants, forming a toxic gas or acids that may cause serious injury and property damage.
ENGINEERING DATA MODEL 75 100 125 150 200 250 300 400 500 Rated Capacitya - (scfm) 75 100 125 150 200 250 300 400 500 Inlet /Outlet Connections - (inches) 3/4 1 1 1 1-1/2 1-1/2 1-1/2 2 2 Height - (inches) 20.1 20.6 20.6 20.6 30.0 30.0 29.9 29.9 31.5 Length - (inches) 19.7 28.3 28.3 28.3 35.4 35.4 37.4 37.4 41.3 Width - (inches) 18.9 13 13 13 16.1 16.1 19.3 19.3 23.
ELECTRICAL SCHEMATICS 115V/1PH/60Hz ON/OFF SWITCH WITH RUNNING LAMP R 2 5 6 F.P.S PTC STARTER S COMP. M 1PH T C FAN MOTOR OVERLOAD PROTECTOR ELECTRONIC AUTO DRAIN VALVE Figure 1a 75 scfm models 115V / 1PH / 60Hz R ON/OFF SWITCH WITH RUNNING LAMP 2 5 CS CR 3 6 1 F. P. S. PTC STARTER S COMP.
ELECTRICAL SCHEMATICS 115V/1PH/60Hz R ON/OFF SWITCH WITH RUNNING LAMP Overload protector (OLP) P.R F.P.S C COMP. S 1~ R FAN MOTOR P.R-b T Potential Relay ELECTRONIC AUTO DRAIN VALVE Starting Capacitor Figure 1c 150 scfm models 460V/3Ø/60Hz R S T R TR 150VA 0V 0V 380V T 440V 3 115V F1(2A) ON/OFF SWITCH WITH RUNNING LAMP 21 R 21 24 21 H.P.S MC1 F.P.S 11 MC1 31 DSM FAN MOTOR RL1 With internal T.
AIR AND REFRIGERANT FLOW SCHEMATICS MOISTURE SEPARATOR INTEGRATED BRAZED PLATE HEAT EXCHANGER CHILLER REHEATER (REF TO AIR HEAT EXCHANGER) (AIR TO AIR HEAT EXCHANGER) COMPRESSED AIR INLET COMPRESSED AIR OUTLET CAPILLARY TUBE S DRAIN VALVE ELECTRONIC AUTO STRAINER DRAIN VALVE WITH TIMER HOT GAS BY-PASS VALVE AIR FLOW REFRIGERANT COMPRESSOR FILTER/DRYER F.P.
AIR AND REFRIGERANT FLOW SCHEMATICS MOISTURE SEPARATOR INTEGRATED BRAZED PLATE HEAT EXCHANGER REHEATER CHILLER (REF TO AIR HEAT EXCHANGER) (AIR TO AIR HEAT EXCHANGER) COMPRESSED AIR INLET COMPRESSED AIR OUTLET CAPILLARY TUBE S DRAIN VALVE ELECTRONIC AUTO STRAINER DRAIN VALVE HOT GAS BY-PASS VALVE AIR FLOW REFRIGERANT COMPRESSOR FILTER/DRYER CONDENSER F.P.S H.P.
REPLACEMENT PARTS Item Description 75 scfm 100 scfm 125 scfm 150 scfm 1 Refrigerant Compressor 3149274 3161249 3161249 3161250 2 Condenser (air-cooled 1283269 3161253 3161253 3161254 3 Fan Blades 3041954 3041954 3041954 3041954 4 Fan Motor 3161257 3161257 3161257 3161257 5 Filter Dryer 3161259 1283273 1283273 1283273 6 Solenoid Valve Assembly 3161263 3161263 3161263 3161263 7 Solenoid Valve Timer 3161264 3161264 3161264 3161264 8 Solenoid Valve Strainer 3161
WARRANTY The manufacturer warrants the product manufactured by it, when properly installed, operated, applied, and maintained in accordance with procedures and recommendations outlined in manufacturer’s instruction manuals, to be free from defects in material or workmanship for a period as specified below, provided such defect is discovered and brought to the manufacturer’s attention within the aforesaid warranty period.
